mcb
New Member
Posts: 47
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Post by mcb on May 21, 2014 23:11:23 GMT
I've seen the Bead and Cove forming tips for the RS200KT mentioned in various places but I can't find them on the Robert Sorby website.
Has this tool and its accessories been discontinued?
Has it been replaced by anything?
Best wishes and thanks
MCB
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Post by jimcarroll on May 22, 2014 8:33:44 GMT
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mcb
New Member
Posts: 47
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Post by mcb on May 27, 2014 23:23:24 GMT
I should be most grateful if Jeff would kindly give some pointers as to how the Bead and Cove cutting tips for the RS200KT should be used (and sharpened)
There's nothing about these tips in the RS200KT instructions that I downloaded.
I had a lot of trouble finding the Bead and Cove cutting tips on the RS Website; have the computer boffins considered adding a SEARCH function to it?
With best wishes and thanks.
MC
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Post by jimcarroll on May 28, 2014 9:27:15 GMT
You tube is your freind youtu.be/WiD7ykD3HrUsharpening is with a diamond lap over the top of the cutter, you dont want to change the front profile of the cutter.
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Post by dalboy on May 29, 2014 15:11:46 GMT
A little tip on sharpening
Never let the cutter get too blunt it is better to run over the surface as Jim says little and often
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mcb
New Member
Posts: 47
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Post by mcb on May 31, 2014 23:17:42 GMT
You Tube is NOT *my* friend since the films don't run on my computer because it's old and has limited memory. MCB
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Post by Jeff Farris on Jun 1, 2014 1:31:04 GMT
MCB,
Were you able to locate the cutters? Let me know what country you're in, and I'll try to point you in a direction.
As for use, they're scrapers...anytime you're shaping with scrapers you need a really keen edge and a light touch. Sharpen by lapping the flat side on a fine grit honing stone. Approach the stock at the centerline with a slight downward presentation. Rock side to side gently as you work in.
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mcb
New Member
Posts: 47
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Post by mcb on Jun 1, 2014 22:09:05 GMT
MCB, Were you able to locate the cutters? Let me know what country you're in, and I'll try to point you in a direction. As for use, they're scrapers...anytime you're shaping with scrapers you need a really keen edge and a light touch. Sharpen by lapping the flat side on a fine grit honing stone. Approach the stock at the centerline with a slight downward presentation. Rock side to side gently as you work in. Jeff I live in Hertfordshire in the United Kingdom. I tend to prefer buying things in person rather than by any sort of Mail Order. I appreciate that Jeff probably won't approve but I'm very tempted to buy a few lengths of square section steel bar, embed one end in a home turned handle and then chamfer and tap a M5 thread at the other end of each so I can mount the cutters in something that will be a lot cheaper than the Sorby tools. I know that if I have to undo a tiny screw to change the cutters, I'll drop either the screw or the cutter and it'll disappear into the sawdust and shavings on the shed floor. So a dedicated handle for each cutter is, in my view, a necessity. And I'm afraid that can't afford to buy Mr. Sorby's handles (even though I'm sure they will be better made than mine! Best wishes and thanks MCB
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Post by Pete on Jun 3, 2014 9:10:07 GMT
I am sure Jeff won't mind you making your own shaft's / handles you will still be buying Sorby cutting tips so it's within the realms of this forum.
I make all my own handles these days, have done ever since I learned how to make accurate turnings, I use copper tube for the ferral, which is the only visible difference once the red writing has worn off, as I make them all in Sorby style including the grove patterning, I like the weight and feel of them, I have also made some shear scraper bars with cheap square metal stock some flat some ground to 45 degrees, you won't achieve the flexibility of the half round rs2000 with square stock, a lot of it's fineness comes when used "upside down" on the round profile.
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Post by Pete on Jun 3, 2014 23:26:18 GMT
Not sure how this picture upload will go, but got to start with something... This is my home made scraper, with the Sorby circular tip attached to the 45degree ground section from a 12mm square bar not the handle is also home made, but I must have obtained the ferrel from something else as normally I use copper (from the plumbing section of any DIY store). As I said it's not as good as the half round profile of the RS200KT, but I made it first along with a couple of square presentation ones and they do make a handy place to store the spare tips
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Post by Rob on Jun 4, 2014 7:50:23 GMT
so did you tap the hole at the end Pete where the little Allen bolt holds the cutter on to the stem with? Or is there a nut at the bottom unseen on the photo?
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Post by Pete on Jun 4, 2014 10:30:28 GMT
I drilled and tapped it, 5mm machine screw, tools needed:- 5mm thread cutting tap 4.5mm drill bit good vice to work at pillar drill (though hand drill would work with care) hacksaw grinder
Top Tip... buy your tips first so you have a good scale to work from.
First mark out and accurately drill the end of the stock, in my case using 12mm bar I was aiming at 6mm from end and exact centre. for shear scraper you will want to come through from the corner angle, so it's best to grind a small flat first to make it easier. Accuracy at this stage is the most important part of the job.
Grind any shaping you want on the business end, I rounded off the tip, to measure that I fitted the hollowing clamp and marked around the outside edge of it,
Cut to length, and in the case of square stock grind off a bit of the corners that will be driven into the handle, makes life easier (about 3" goes into the handle, not the full length of it)
Tap the thread for the machine screw, this is done after the shaping so the thread doesn't get distorted.
Make and fit the handle and you are done.
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Post by Jeff Farris on Jun 4, 2014 10:45:06 GMT
Or....If you haven't got a fully equipped machine shop, unlimited time, and prefer woodturning to toolmaking, we'll be happy to do all that for you.
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Post by Rob on Jun 4, 2014 12:59:44 GMT
LOL....nice one Jeff.....an indefatigable salesman :-)
Also thanks Pete - interesting too. I do have a handle to make actually, for a 5/8 lamp flex boring tool. It has a funny, flat tang on the handle end of the metal. I really must get that done, been procrastinating for some time on it.
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Post by Pete on Jun 4, 2014 16:26:32 GMT
Spot on Jeff, you forgot to mention that you have better stock and machining ability too. I do enjoy making the handles, but I cant make the cutting edge, plus I couldn't write a Christmas or birthday list if you were not so good at making the shiny things I want :-)
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